Home / 9,018.60-13,529.76-3,179.28

Finding the Fourth Proportional to 9,018.60, 13,529.76 and 3,179.28

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Solution

The fourth proportional to 9,018.60, 13,529.76 and 3,179.28 is: 4,769.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,018.60 : 13,529.76 = 3,179.28 : x
  2. Step 2: Convert to fraction form
    9,018.60/13,529.76 = 3,179.28/x
  3. Step 3: Cross multiply
    9,018.60x = 13,529.76 × 3,179.28
  4. Step 4: Simplify right side
    9,018.60x = 43,014,895.37
  5. Step 5: Solve for x
    x = 43,014,895.37/9,018.60
  6. Step 6: Final answer
    x = 4,769.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.